Splyt will launch in London next week. Minicab drivers will give passengers the option of sharing their journey or not, with potential savings of up to 40 per cent on fares.

Customers can also rate Splyt drivers and passengers on a star rating. Customers who rate a passenger with fewer than three stars will never be matched with the same customer again.

People who use the Splyt app will have free in-car wi-fi, a female-only sharing option and in-app payments with an integrated tipping system.

Founder and CEO Philipp Mintchin said: "Splyt solves a real problem for the commuting public today. Public transport can be unreliable, inconvenient, pricey and time consuming, while the cost of travelling in taxis or solo in minicabs is too expensive for most."

James Brooke, MD at Rooster PR, added: "We’ve worked closely with Splyt to help develop a disruptive launch campaign that will shake up the industry and get Londoners falling over themselves to download the app and use the service."

Meanwhile, Rooster has won a pitch to create a PR and social media campaign for a new on-demand task app called Pickle. Pickle connects anyone who is happy to pay for help with odd jobs, such as fixing a boiler or buying milk, with locals who can assist. The app launches at the end of April.